diff --git a/src/META-INF/MANIFEST.MF b/src/META-INF/MANIFEST.MF
index b6cf2b4..12d2b4c 100644
--- a/src/META-INF/MANIFEST.MF
+++ b/src/META-INF/MANIFEST.MF
@@ -3,8 +3,8 @@ Created-By: Hartwig Thomas, Enter AG, Zurich, Switzerland
 Specification-Title: ZIP64
 Specification-Version: 1.0
 Implementation-Title: Zip64
-Implementation-Version: 2.1.79
+Implementation-Version: 2.1.80
 Implementation-Vendor: Enter AG, Rüti ZH, Switzerland
-Built-Date: 10. Jan 2020
+Built-Date: 14. Feb 2020
 Main-Class: ch.enterag.zip.zip64
 Class-Path: ../lib/enterutils.jar